Published on March 13, 2026 by Pure Health Primary Care
When Your Heart Starts Racing
Many people have experienced the sudden sensation of their heart beating faster than usual. Sometimes it happens during stress or physical activity, but in other situations it may appear unexpectedly while resting.
This sensation is commonly called heart palpitations. While palpitations are often harmless, they can sometimes signal underlying medical conditions that deserve proper evaluation.
Understanding what may trigger a racing heart can help people recognize when symptoms are temporary and when medical assessment may be helpful.
Common Causes of a Racing Heart
- Stress and anxiety: Emotional stress activates the body’s fight-or-flight response, increasing heart rate.
- Caffeine or stimulants: Coffee, energy drinks, certain medications, and supplements can increase heart rate.
- Dehydration: When the body lacks adequate fluids, the heart may beat faster to maintain circulation.
- Iron deficiency: Low iron levels can reduce oxygen delivery in the blood, causing the heart to work harder.
- Thyroid disorders: An overactive thyroid can accelerate metabolism and increase heart rate.
- Sleep deprivation: Poor sleep can affect hormone balance and cardiovascular regulation.
When Palpitations Should Be Evaluated
While occasional palpitations may occur in healthy individuals, certain symptoms should prompt medical evaluation.
- Persistent or frequent episodes
- Associated dizziness or fainting
- Shortness of breath
- Chest discomfort
- Palpitations that occur without clear triggers
A clinical assessment helps determine whether symptoms are related to lifestyle factors, hormonal changes, nutritional deficiencies, or heart rhythm conditions.
How Medical Evaluation May Help
Evaluation for palpitations may include reviewing medical history, lifestyle factors, and symptoms. Depending on the situation, clinicians may recommend blood tests or heart rhythm monitoring.
Identifying the cause of symptoms is important for guiding safe and appropriate care.
How Pure Health Primary Care Can Help
At Pure Health Primary Care, we approach symptoms like palpitations with a comprehensive perspective. Our goal is to understand what the body may be signaling and determine whether further assessment is needed.
- Evaluation of palpitations and racing heart symptoms
- Assessment of possible contributing factors such as stress, nutrition, or hormonal changes
- Evidence-based medical guidance
- Personalized care plans tailored to individual health needs
Take the Next Step Toward Better Health
If you have experienced episodes of a racing heart or unexplained palpitations, a proper medical assessment can help determine the underlying cause and guide appropriate care.
Phone: 613-908-8999
Email: info@pureclinic.ca
Website: pureclinic.ca
This article was reviewed by Agnes Etaka, Nurse Practitioner at Pure Health Primary Care.
This article is for educational purposes only and does not replace medical advice or an individual clinical assessment.